| DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | 0.650 INCHES MINIMUM AND 0.670 INCHES MAXIMUM |
| HOLE DIAMETER | 1.501 INCHES MINIMUM AND 1.507 INCHES MAXIMUM |
| INTERNAL KEY QUANTITY | 1 |
| INTERNAL STRAIGHT KEY WIDTH | 0.220 INCHES MINIMUM AND 0.240 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL THICKNESS | 0.087 INCHES MINIMUM AND 0.089 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 4130 OR STEEL COMP 4140 OVERALL |
| OUTSIDE DIAMETER | 1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM |
| STYLE DESIGNATOR | INTERNAL KEY |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |